Mozilla Firefox is the ubiquitous web browser. Based on open source components, it is trademarked and cannot be altered or re-distributed with any change that involves the name or trademarks. Install the current version:

sudo apt-get install firefox

Firefox Plug-ins

Adblock plug-in (block ads in a web page)

Adblock Plus blocks ads that appear in web pages. You can subscribe to a free filter service, and can add ads to block with a single click.

sudo apt-get install mozilla-firefox-adblock

You can also add this extension from Firefox -> Tools -> Add-ons -> Get Add-ons -> Browse All Add-ons. (This method will also ensure that automatic updates are installed by Firefox.)

Noscript plug-in (controls scripts)

The Noscript plugin is considered one of the most important security measures for browsing the Internet. Most viruses and trojans gain access to computers from the Internet through scripts. This plugin allows you to choose which scripts to allow and blocks the rest.

sudo apt-get install mozilla-noscript

You can also add this extension from Firefox -> Tools -> Add-ons -> Get Add-ons -> Browse All Add-ons. (This method will also ensure that automatic updates are installed by Firefox.)

User Agent Switcher plug-in for Firefox

The User Agent Switcher plugin allows a browser to masquerade as another browser, allowing (most of the time) browser-specific content to be displayed.

You can add this extension from Firefox -> Tools -> Add-ons -> Get Add-ons -> Browse All Add-ons. (This method will also ensure that automatic updates are installed by Firefox.)